This is touching and well-written, very good imagery.
A few mistakes: "are" should be "our" (when you're referring to something that belongs to "us"). "The tears that feel from THERE once smiling faces" should be THEIR, and the line "The strong smell of blood that no could deny" is awkward and seems to be missing a word. Consider rewriting that line?
Other than that, I liked this poem. A little morbid, but death and tragedy always is.